The Duchess of Cambridge Kate Middleton' turns 37

The Duchess of Cambridge Kate Middleton' turns 37

"Kate's not into big birthday celebrations, but [Prince] George and [Princess] Charlotte adore birthday cake, so there will be a special tea party at the Palace with candles and presents", an insider told the publication's royal reporter Katie Nicholl.

The Duke of Cambridge attended his first official engagement of 2019 on Wednesday morning, visiting London's Air Ambulance.

Wednesday marks Duchess of Cambridge Kate Middleton's 37th birthday.

Amman in Jordan was home to Kate and her family for a few years in the mid 1980s, where she attended a nursery school from the age of three, before returning to Berkshire.

The prince left bystanders nervously laughing after he joked that he'd forgotten his wife's birthday which coincided with his visit today.

She will no doubt be spending most of the day with Prince Louis, who was born in last April.

While Prince William, 36, was busy with an engagement earlier in the day, he made it back home in time to join in the fun.

When a group of children gave the Duke of Cambridge a birthday card to pass onto his wife, William reportedly mused: "Well done for remembering!"

William always seemingly picks gifts with sentimental value, marking the arrival their first child with a circular pendant inscribed with their son's full name, George Alexander Louis.

Kate and Prince William have already birthed three children (George, Louis, and Charlotte) in a bid to crush Royal newcomer Meghan Markle's claim to mummy fame by springtime.

The Cambridges' youngest child Prince Louis is now only eight months old, which makes it even more unlikely that Kate is pregnant again.

William worked as an air ambulance pilot before retiring in 2017 to become a full-time royal.

But since becoming a mother, the Duchess has preferred to celebrate privately with her close family.